Home / 121,815.18-182,700.45-55,239.30

Finding the Fourth Proportional to 121,815.18, 182,700.45 and 55,239.30

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Solution

The fourth proportional to 121,815.18, 182,700.45 and 55,239.30 is: 82,848.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,815.18 : 182,700.45 = 55,239.30 : x
  2. Step 2: Convert to fraction form
    121,815.18/182,700.45 = 55,239.30/x
  3. Step 3: Cross multiply
    121,815.18x = 182,700.45 × 55,239.30
  4. Step 4: Simplify right side
    121,815.18x = 10,092,244,967.69
  5. Step 5: Solve for x
    x = 10,092,244,967.69/121,815.18
  6. Step 6: Final answer
    x = 82,848.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.